From 40fa5afece4ac6e3aebe19ed70058a0fdafcffa6 Mon Sep 17 00:00:00 2001 From: Teresa Johnson Date: Fri, 10 Nov 2017 23:37:39 +0000 Subject: [ThinLTO] Handle -fdebug-pass-manager for backend invocations via clang Summary: The LTO Config field wasn't being set when invoking a ThinLTO backend via clang (i.e. for distributed builds). Reviewers: danielcdh Subscribers: mehdi_amini, inglorion, eraman, cfe-commits Differential Revision: https://reviews.llvm.org/D39923 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317951 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/BackendUtil.cpp | 1 + test/CodeGen/thinlto-debug-pm.c | 9 +++++++++ 2 files changed, 10 insertions(+) create mode 100644 test/CodeGen/thinlto-debug-pm.c diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp index 893967a9d6..0df446327a 100644 --- a/lib/CodeGen/BackendUtil.cpp +++ b/lib/CodeGen/BackendUtil.cpp @@ -1073,6 +1073,7 @@ static void runThinLTOBackend(ModuleSummaryIndex *CombinedIndex, Module *M, initTargetOptions(Conf.Options, CGOpts, TOpts, LOpts, HeaderOpts); Conf.SampleProfile = std::move(SampleProfile); Conf.UseNewPM = CGOpts.ExperimentalNewPassManager; + Conf.DebugPassManager = CGOpts.DebugPassManager; switch (Action) { case Backend_EmitNothing: Conf.PreCodeGenModuleHook = [](size_t Task, const Module &Mod) { diff --git a/test/CodeGen/thinlto-debug-pm.c b/test/CodeGen/thinlto-debug-pm.c new file mode 100644 index 0000000000..9d9ab5e39d --- /dev/null +++ b/test/CodeGen/thinlto-debug-pm.c @@ -0,0 +1,9 @@ +// Test to ensure -fdebug-pass-manager works when invoking the +// ThinLTO backend path with the new PM. +// RUN: %clang -O2 %s -flto=thin -c -o %t.o +// RUN: llvm-lto -thinlto -o %t %t.o +// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-obj -O2 -o %t2.o -x ir %t.o -fthinlto-index=%t.thinlto.bc -fdebug-pass-manager -fexperimental-new-pass-manager 2>&1 | FileCheck %s +// CHECK: Running pass: + +void foo() { +} -- cgit v1.2.3